composer(deps): bump ergebnis/json-printer from 3.0.2 to 3.1.0

Bumps [ergebnis/json-printer](https://github.com/ergebnis/json-printer) from 3.0.2 to 3.1.0.
- [Release notes](https://github.com/ergebnis/json-printer/releases)
- [Changelog](https://github.com/ergebnis/json-printer/blob/main/CHANGELOG.md)
- [Commits](ergebnis/json-printer@3.0.2...3.1.0)

Signed-off-by: dependabot[bot] <support@github.com>

composer.json

@@ -17,7 +17,7 @@
   "require": {
     "php": "^7.1",
     "ext-json": "*",
-    "ergebnis/json-printer": "^3.0.2",
+    "ergebnis/json-printer": "^3.1.0",
     "justinrainbow/json-schema": "^5.2.10"
   },
   "require-dev": {